# Try LaTeX by Mathjax in markdown （中文标题测试）

Here we go some $\LaTeX$ equations

$\LaTeX$表記で数式を試しましょう

## The operator nabla

$\nabla = \vec x \frac{\partial}{\partial x} + \vec y \frac{\partial}{\partial y} + \vec z \frac{\partial}{\partial z}$

## How about a latex equation $\frac{x}{y}$ in title??

I changed the default markdown language to kramdown in _config.yml, so the equation should be displayed properly in the title.

And below is the comparison of a kramdown written equation and a html written equation:

The html version:

$\nabla = \vec x \frac{\partial}{\partial x} + \vec y \frac{\partial}{\partial y} + \vec z \frac{\partial}{\partial z}$

The “kramdown” version:

Written on January 8, 2015